Medicated shampoos will help including zine pyrithione or selenium sulphide and even stronger shampoos containing tar or salicylic acid .

药物洗发精会有些帮助，如含有锌的硫化铁矿物质或含有硒的硫化物，甚至含有 焦油 和 水杨酸的强力洗发精。

A Study of Reducing Tar in Cigarette and Its Mutant hy Adding Tannic Acid

鞣酸添加剂对降低卷烟 焦油致突变性的研究

This paper introduced the harmfulness of tar acid produced by industry equipment pointed out the shortcoming of several traditional method of getting rid of tar acid gave out the measures to remove a small amount of tar by electrostatically enhanced cyclone separators .

介绍了工业设备产生 焦油的危害性，指出了几种传统去除焦油方法的缺点。在理论和实验上分析了静电旋风除尘器去除少量焦油的可行性，给出了去除少量焦油的措施方法。

Yields of wood vinegar and wood tar were almost constant though yield of charcoal was slightly decreased with the increase of acetic acid aqueous solution concentration .

处理液的 醋酸浓度增加后，木醋液和木 焦油的收率几乎不变，但木炭的收率稍微减少了。

Coal tar pitch was oxidized with a mixture of concentrated sulfuric acid and nitric acid at 30 ? ℃ and converted into aqua mesophase pitch in a high yield which was dissolved in aqueous solution of ammonia hydroxide and carbonaceous hydrogel was formed .

以高温煤 焦油沥青为炭源，经浓硝酸和浓 硫酸混合物在30℃氧化制备出较高收率的水性中间相沥青。

Compared with sulfuric acid process under the premise of ensuring pure benzene quality the pollution of tar acid and waste water contained with acid on environment can be eliminated .

与硫酸法相比，在保证纯苯质量的前提下，可消除 酸 焦油和含酸废水对环境的污染。

The preparation of aqua mesophase pitch ( AMP ) was investigated by oxidation of coal tar pitch with mixtures of concentrated sulfuric acid and nitric acid .

以煤 焦油沥青为原料，以浓 硫酸和浓硝酸为氧化剂，可得到易溶于碱性水溶液的水性中间相沥青。

We have successfully synthesized the condensed polynuclear aromatic ( COPNA ) resin using coal tar pitch as monomer and divinylbenzene ( DVB ) as cross-linking agent in the presence of p-toluene sulfonic acid the pyrolyzed substance structures and properties of which are studied in this paper .

本文进行了以煤 沥青为单体、二乙烯基苯（DVB）为交联剂缩合多核芳烃（ COP-NA）树脂热解产物的结构与性能研究。

Firstly we design the molecular structure for coal tar pitch and modify industrial medium-temperature coal tar pitch with divinylbenzene ( DVB ) and p-methyl benzaldehyde ( PMB ) in the presence of p-toluene sulfonic acid ( PTS ) the modification mechanism of which is studied .

首先对煤沥青的分子结构进行设计，然后分别采用二乙烯基苯（DVB）、对甲基苯甲醛（ PMB）对工业中温煤 沥青进行了改性，并分析了 煤 沥青的改性机理；

Analysis the Tar Component in the Acid - containing Wastewater

烷基化含 酸废水中 焦油组成分析